Covariance-aware demapping on Fourier-curve constellations with tangent AN yields approximately 5 dB BLER improvement over Euclidean demapping in LDPC-coded systems at (k,M)=(20,64).
Mismatched decoding: Error exponents, second-order rates and saddlepoint approx- imations
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Covariance-Aware Demapping on Fourier-Curve Constellations
Covariance-aware demapping on Fourier-curve constellations with tangent AN yields approximately 5 dB BLER improvement over Euclidean demapping in LDPC-coded systems at (k,M)=(20,64).